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Solved Online MCQs With Answers Chemistry Practical Test

Q.1: In the formation of Zwitter ions proton goes from------------ ?

1. Carboxyl to amino group
2. Amino to carboxyl group
3. Amino group only
4. Carboxyl group only

A

Q.2: Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces----- ?

1. CO2
2. Alkane
3. Ester
4. Acidamide

D

Q.3: Shielding effect across the period ------- ?

1. Increases
2. Decreases
3. Constant
4. None

C

Q.4: Essential amino acids are---------- ?

1. 5
2. 10
3. 15
4. 20

B

Q.5: Among halogens the highest boiling point is of---------- ?

1. Flrorine
2. Chlorine
3. Bromine
4. Iodine

D

Q.6: Identification of the components of a sample is--------- ?

1. Quantitative analysis
2. Qualitative analysis
3. Stoichiometry
4. Physical chemistry

B

Q.7: True increasing order of acidity of the oxides of Mn is----------- ?

1. MnO < MnO2 < Mn2O7
2. Mn2O7 > MnO2 > MnO
3. MnO2 > MnO > Mn2O7
4. MnO2 > Mn2O7 > MnO

B

Q.8: Modern periodic table has been divided in ----------- blocks ?

1. 2
2. 4
3. 8
4. 7

B

Q.9: The solvent or mixture of solvents used for separation of compounds is called--------- ?

1. Stationary phase
2. Mobile phase
3. Dynamic phase
4. Static phase

B

Q.10: The major steps involved in complete quantitative analysis are --------- ?

1. 2
2. 3
3. 4
4. 5

C

Q.11: Which of the following will have highest value of electron affinity----------- ?

1. F
2. Cl
3. Br
4. I

B

Q.12: The geometry of ammonia is---------- ?

1. Tetrahedral
2. Square planner
3. Trigonal bipyramidal
4. Trigonal Pyramidal

D

Q.13: Oxidation state of an atom represents------- ?

1. Number of electrons gained
2. Number of electrons lost
3. Apparent charge in compound
4. Its vacancies

C

Q.14: Iodine is solid due to--------- ?

1. Strong covalent bond
2. Large value of dipole moment
3. High polarizability
4. Strong hydrogen bonding

C

Q.15: The common thing in phthalic acid and oxalic acid is that both are---------- ?

1. Aromatic
2. Dicarboxylic
3. Hydrocarbons
4. Strong acids

B

Q.16: Elements of group IA IIA are ------- ?

1. Electronegative
2. Electropositive
3. Neutral
4. IA is electropositive while IIA is electronegative

B

Q.17: Which is not a sublime material--------- ?

1. Iodine
2. Benzoic acid
3. Ammonium chloride
4. Potash alum

D

Q.18: Energy required to remove electron from an atom--------- ?

1. Ionization potential
2. Electronegativity
3. Electron affinity
4. Activation energy

A

Q.19: The ionization energy------- ?

1. Generally increases from left to right in a period
2. Does not change in a period
3. Increase from top to bottom in a group
4. Does not change in a group

A

Q.20: Which one is not the absolute term of the element ------ ?

1. Ionization energy
2. Electron affinity
3. Electro negativity
4. Atomic size

C